名词
中文翻译：主要部分
同义词：
['principal', 'chief', 'essential']
例句：
-
1. The main goal of the project is to improve efficiency.
该项目的主要目标是提高效率。
-
2. Maintaining good health is a top priority for everyone.
保持健康是每个人的首要任务。
-
3. The main reason for his success was his hard work and dedication.
他成功的主要原因是他的勤奋和奉献。